From: Michael Shigorin <mike@osdn.org.ua>
To: sysadmins@lists.altlinux.org
Cc: sisyphus@lists.altlinux.org, community@lists.altlinux.org
Subject: [sisyphus] I: kernel local root vulnerability (CVE-2013-2094)
Date: Wed, 15 May 2013 02:35:18 +0300
Message-ID: <20130514233518.GU4388@osdn.org.ua> (raw)
Здравствуйте.
В ядре Linux от 2.6.37 до 3.8.8 (3.8.9?) включительно при наличии
CONFIG_PERF_EVENTS=y (у нас включено в std-def, un-def, led-ws
из того, что под рукой) присутствует уязвимость, для которой
теперь доступен публичный эксплойт с получением локального рута:
https://news.ycombinator.com/item?id=5703758
http://packetstormsecurity.com/files/121616/semtex.c
Временный объезд до обновления ядра до исправленных сборок
(см. https://bugzilla.redhat.com/show_bug.cgi?id=962792#c7):
sysctl kernel.perf_event_paranoid=2
echo "kernel.perf_event_paranoid=2" >> /etc/sysctl.d/CVE-2013-2094.conf
--
---- WBR, Michael Shigorin <mike@altlinux.ru>
------ Linux.Kiev http://www.linux.kiev.ua/
next reply other threads:[~2013-05-14 23:35 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-14 23:35 Michael Shigorin [this message]
2013-05-15 4:00 ` [sisyphus] [Sysadmins] " Nikolay A. Fetisov
2013-05-15 12:01 ` [sisyphus] " Gleb Fotengauer-Malinovskiy
2013-05-15 12:54 ` Mike Lykov
2013-05-15 12:58 ` Aleksey Novodvorsky
2013-05-15 15:20 ` Aleksey Novodvorsky
2013-05-15 13:23 ` Sergey
2013-05-16 4:27 ` Mike Lykov
2013-05-15 14:43 ` Michael Shigorin
2013-05-15 16:52 ` Mike Lykov
2013-05-16 6:07 ` Sergey
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